TikTok Sardine Trend Strips Supermarket Shelves Bare

Shoppers hunting for a tin of sardines at their local supermarket are coming away empty-handed, as a viral TikTok trend drives an unexpected surge in demand for the humble canned fish.

Woolworths and Coles customers across Australia have reported picking through bare shelves in the canned seafood aisle, with sardines — long a staple of budget pantries and Mediterranean diets — suddenly impossible to find in many stores.

The trend, which has swept through TikTok's food community over recent weeks, centres on sardines as a health food hero. Creators have been showcasing the fish as a cheap, nutrient-dense protein source rich in omega-3 fatty acids, calcium and vitamin D. Some videos promoting sardine-based meals and snacks have racked up millions of views, turning a product that sat quietly on shelves for years into an overnight sensation.

It is a pattern that has become familiar to supermarket supply chains in the social media era. Products can go from overlooked to sold out within days when a video resonates with enough viewers. Stanley cups, feta pasta, and specific brands of hot sauce have all experienced similar viral moments, each leaving retailers scrambling to restock.

Sardines, however, present a particular challenge. Unlike manufactured snack foods where production can be ramped up relatively quickly, canned sardines depend on seasonal fish harvests and longer processing timelines. Suppliers cannot simply switch on extra capacity overnight to meet a sudden spike driven by an algorithm.

Nutritionists say the attention on sardines is at least well-placed. The fish are among the most sustainable seafood choices available, sitting low on the food chain and reproducing quickly. A single 95-gram tin typically delivers around 20 grams of protein along with a significant portion of the daily recommended intake of omega-3s — all for under two dollars when shelves are stocked.

For budget-conscious households already navigating cost-of-living pressures, the timing of the shortage is particularly frustrating. Sardines have long been a go-to for people stretching a grocery budget, and the irony of a viral health trend pricing or squeezing out the very shoppers who relied on them most has not been lost on social media users.

Some shoppers have taken to posting their own videos documenting the empty shelves, tagging supermarkets and asking when restocks are expected. Others have begun substituting with mackerel, herring or tuna, though food creators say the nutritional profile and flavour do not quite match.

Supermarkets have not publicly commented on how long the shortage may last, though similar trend-driven shortages in recent years have typically resolved within a few weeks once supply chains adjust and the initial wave of demand levels off.

In the meantime, those who manage to find sardines on shelves are reporting they are buying in bulk — which, of course, only deepens the shortage for everyone else.